Being butthurt means being aggravated, pissed off, or bugged over something completely trivial. Usually when people are butthurt they are really dramatic about it. Most people like to laugh at or even mock the annoyance of butthurt people because their reasoning for being so butthurt is ridiculously stupid.

Guy 1: Typical Chandler is butthurt again about us drinking one of his beers and hiding his bike.

Guy 2: Yeah, he was really butthurt last night when he lost beer pong and I called him a little bitch.
Guy 1: When will Chandler ever learn to take a joke?

A word used only when one has nothing intellectual or factual to say in an online debate, and therefore resort to the use of the word to downplay another person's argument to compensate for the lack of one's own.

- "Dude, you can dislike LeBron James, but there's no denying that he's been carrying the Cavaliers all throughout these NBA finals. The game of basketball is no one-man show; his team needs to step up to the plate if they want to win."

- "Oh, look, a butthurt LeBron James fan."

- "Oh, look, another ignoramus on the internet who has to resort to using the word "butthurt" to compensate for the fact that he nothing smart to say. Congratulations on proving I'm only smarter than you are."

A. When a person gets overly offended for a non mean-spirited joke.
B. The state of being offended because of a joke your friend made and not talking to him or her because of said joke.

Ryan and Lucas are working on a table, Lucas asks Ryan to do a simple task yet Ryan is incapable of doing it well, when Lucas tries to help Ryan and tells him that he is doing a poor job, Ryan gets butthurt and goes inside Lucas' house to sit on the couch by himself and fume.

The act of being upset over a very menial situation such as not being invited somewhere or having information withheld from you unintentionally. One whom becomes butt hurt easily also is great at verbal accusations in lieu of physical altercations.